Can you tell me which is which, and supply some test data that demonstrates
it?

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"paulinoluciano" wrote in message
ups.com...
Thank you Bob Phillips. The molecular weight VBA codes worked exactly
how I want however the IEP code have some strange problem! If you test
the same sequence in different cells you will obtain distinct values. I
can not understand what is happening...
Luciano